Mathematics
Mathematics, 25.09.2019 05:20, Wocking310

(7y2 + 3xy - 9) - (2y2 + 3xy - 5)
5y² - 4
9y2 + 6xy - 14
5y² + 4
5y2 + 6xy - 14

answer
Answers: 2

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(7y2 + 3xy - 9) - (2y2 + 3xy - 5)
5y² - 4
9y2 + 6xy - 14
5y² + 4
5y2 + 6xy -...

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